USQ40 Datasheet, PDF (1/15 Pages) Murata Manufacturing Co., Ltd. – Single Output

OBSOLETE PRODUCT
Contact Factory for Replacement Model
®
®
INNOVATION and EXCELLENCE
Single Output
USQ 40A Models
High-Current, Quarter-Brick
40 Amp, DC/DC Converters
Features
„ To 40 Amperes Output Current
„ Low-profile, industry standard
quarter-brick package and pinout;
1.45" x 2.28" x 0.40"
„ 24V and 48V nominal inputs
„ Output Voltages: 1.2/1.5/1.8/2.5/3.3V
„ Outstanding efficiency: 89%
„ Full synchronous-rectifier topology
„ 110mVp-p noise
„ Fast transient response (200μsec to 1%)
„ Impressive ±0.05% line/load regulation
„ Fully isolated, 1500Vdc guaranteed
„ Fully I/O protected; Thermal shutdown
„ Remote On/Off control
„ Output trim and sense functions
„ UL1950/EN60950 approvals, HALT
tested, EMI compliant
An unrivaled combination of power, size, long-term reliability and affordable cost
defines DATEL’s new 40 Ampere output series Quarter-Bricks. By exploiting a fully
synchronous forward topology and the newest available components, the USQ 40A
model converters achieve an 89% efficiency. The extremely high efficiency enables
these units to reliably deliver up to 40 Amps of output power from a low-height
profile, industry-standard “quarter-brick” format package (1.45" x 2.28" x 0.40") with
aluminum baseplate and open-to-airflow shell. The USQ 40A models are a pin-
compatible, high-current, companion product family to DATEL’s USQ 30A and 20A
families, and the ULQ Series 10A and 15A family of quarter bricks.
Additional features include output noise of 110 millivolts, ±0.05% line/load regu-
lation maximum, and quick transient response (200μsec to ±1%). Device functionality
includes remote on/off control (positive or negative polarity), and output trim (+10%,
–20%), sense function, and nominal input ranges of 24V (18-36V) and 48V (36-75V).
In order to safeguard both the power converter and its load, USQ 40A models,
offers the most extensive I/O protection including input undervoltage lockout, and
reverse-polarity protection, as well as output overvoltage protection, current limiting,
short-circuit protection (“hiccup” technique), and thermal shutdown (and optional
input overvoltage lockout).
The USQ 40A Series are designed to meet the BASIC insulation requirements of
UL1950 and EN60950. The “D48” models carry the CE mark. Safety certifications, as
well as EMC compliance testing and qualification testing (including HALT), have been
successfully completed. Contact DATEL for the latest information.
+VIN
(3)
+SENSE
(7)
+VOUT
(8)
–VIN
(1)
REMOTE
ON/OFF
CONTROL*
(2)
SWITCH
CONTROL
–VOUT
(4)
PWM
CONTROLLER
INPUT UNDERVOLTAGE, INPUT
OVERVOLTAGE, AND OUTPUT
OVERVOLTAGE COMPARATORS
OPTO
ISOLATION
REFERENCE &
ERROR AMP
–SENSE
(5)
VOUT
TRIM
(6)
* Can be ordered with positive (standard) or negative (optional) polarity.
Figure 1. Simplified Schematic
DATEL, Inc., Mansfield, MA 02048 (USA) · Tel: [phone] Fax: [phone] · Email: [e-mail] · Internet: www.datel.com